Compressor and refrigeration apparatus

Abstract

A compressor includes a compressor body casing, a compression mechanism unit provided in the compressor body casing, and an accumulator provided outside the compressor body casing and connected to the compression mechanism unit via at least one outlet pipe. The accumulator has at least one through hole through which the outlet pipe is inserted. In a plan view as viewed along a center axis direction of the accumulator, a center or a center of gravity of at least one portion where the outlet pipe is inserted into the through hole is located closer to the compressor body casing than a center axis of the accumulator.

1 . A compressor comprising:
 a compressor body casing;   a compression mechanism unit provided in the compressor body casing; and   an accumulator
 provided outside the compressor body casing, and 
 connected to the compression mechanism unit via at least one outlet pipe, 
 the accumulator having at least one through hole through which the outlet pipe is inserted, 
   in a plan view as viewed along a center axis direction of the accumulator, a center or a center of gravity of at least one portion where the outlet pipe is inserted into the through hole being located closer to the compressor body casing than a center axis of the accumulator.   
     
     
         2 . The compressor according to  claim 1 , wherein
 in the plan view, a virtual straight line and a virtual circle are formed,   the virtual straight line passes through a center axis of the compressor body casing and the center axis of the accumulator,   the virtual circle
 is centered on a point at which the virtual straight line intersects with an outer peripheral surface of the compressor body casing, and 
 has a radius equal to a distance from the point to the center axis of the accumulator, and 
   the center or the center of gravity is located in the virtual circle.   
     
     
         3 . The compressor according to  claim 2 , wherein
 the center or the center of gravity is located on the virtual straight line in the plan view.   
     
     
         4 . The compressor according to  claim 1 , wherein
 an end of the accumulator in the center axis direction has a flat portion extending along a radial direction of the accumulator, and   the through hole is provided in the flat portion.   
     
     
         5 . The compressor according to  claim 1 , wherein
 an end of the accumulator in the center axis direction has a curved portion contiguous with an outer peripheral side surface of the accumulator, and   the through hole is provided in the curved portion.   
     
     
         6 . The compressor according to  claim 1 , wherein
 the outlet pipe has an oil return hole
 communicating with a space in the accumulator and 
 located near a lowermost portion of the accumulator. 
   
     
     
         7 . A refrigeration apparatus including a compressor according to  claim 1 .